Weird twitching..?

I’m posting this in a couple groups because I really don’t know what the cause of it was when I tried to google it it said pelvic floor spasms but I feel like that might be in a different area of my body but.. my butt keeps twitching as well as the outside of my vagina like by the hole I guess. I have never experienced this before and I have no idea what could be causing it. I’m TTC but not pregnant as far as I know so I don’t know why this would be happening has anyone experienced this?? If you have what is it.